Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Juan, PR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4
000
FNCA52 TJSJ 171846
FWFSJU

Fire Weather Planning Forecast for PUERTO RICO
National Weather Service SAN JUAN PR
246 PM AST Thu Aug 17 2017

.DISCUSSION...Fire weather danger is expected to remain low the rest
of today through early Friday, as periods of wetting rains will
persist across much of Puerto Rico. This shower activity is associated
with a tropical wave interacting with an upper level trough as it crosses
the island. Additional showers and isolated thunderstorm development
will remain possible across the parts of the islands overnight through
Friday morning. Drier conditions are expected by Friday afternoon as
an upper level ridge will build over the area and a brief intrusion
of suspended Saharan dust particulates is expected to move across
the region. Easterly winds of 10 to 15 mph will prevail during the
rest of the evening.

PRZ014-180845-
Southeast Coastal Plains-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        MClear       PCldy        PCldy
PRECIP TYPE           showers      showers      showers      tstms
CHANCE PRECIP (%)     20           20           20           30
TEMP (24H TREND)      69 (-7)      93 (+6)      73           93
RH % (24H TREND)      100 (+4)     45 (-14)     95           48
20FTWND-VAL/AM(MPH)                E 15                      E 17
20FTWND-RDG/PM(MPH)   E 11         E 16         NE 13        E 17
MIXING HGT(FT-AGL/MSL)             6046                      5903
TRANSPORT WND (MPH)                E 21                      E 23
VENT RATE (KT-FT)                  107673                    129008
DISPERSION                         5                         5
DSI                   5            6            6            6
LAL                   2            1            1            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ015-180845-
Southern Hills-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        MClear       PCldy        PCldy
PRECIP TYPE           showers      tstms        tstms        tstms
CHANCE PRECIP (%)     30           30           30           50
TEMP (24H TREND)      66 (-7)      89 (+6)      69           90
RH % (24H TREND)      100 (+2)     49 (-14)     99           51
20FTWND-VAL/AM(MPH)                E 13                      E 15
20FTWND-RDG/PM(MPH)   E  9         E 13         NE 12        E 14
MIXING HGT(FT-AGL/MSL)             6278                      5900
TRANSPORT WND (MPH)                E 18                      E 21
VENT RATE (KT-FT)                  98154                     123900
DISPERSION                         5                         5
DSI                   4            6            5            6
LAL                   3            2            2            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ016-180845-
North Coastal Plains-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        MClear       PCldy        PCldy
PRECIP TYPE           tstms        showers      tstms        showers
CHANCE PRECIP (%)     30           20           40           30
TEMP (24H TREND)      71 (-6)      90 (+5)      74           88
RH % (24H TREND)      100 (+3)     57 (-11)     99           60
20FTWND-VAL/AM(MPH)                E 14                      E 16
20FTWND-RDG/PM(MPH)   E 11         E 15         E 14         E 16
MIXING HGT(FT-AGL/MSL)             5286                      5259
TRANSPORT WND (MPH)                E 21                      E 22
VENT RATE (KT-FT)                  92929                     105180
DISPERSION                         5                         5
DSI                   6            6            6            6
LAL                   3            1            1            1
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ017-180845-
Northern Hills-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        MClear       PCldy        PCldy
PRECIP TYPE           tstms        showers      tstms        showers
CHANCE PRECIP (%)     0            30           30           30
TEMP (24H TREND)      68 (-6)      87 (+3)      71           89
RH % (24H TREND)      100 (0)      57 (-8)      100          58
20FTWND-VAL/AM(MPH)                E 12                      E 14
20FTWND-RDG/PM(MPH)   E  9         NE 14        NE 11        E 15
MIXING HGT(FT-AGL/MSL)             5451                      5253
TRANSPORT WND (MPH)                E 18                      E 23
VENT RATE (KT-FT)                  90666                     103677
DISPERSION                         5                         5
DSI                   6            6            6            6
LAL                   3            1            1            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ018-180845-
West Coast-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        MClear       MClear       PCldy
PRECIP TYPE           showers      tstms        NONE         tstms
CHANCE PRECIP (%)     0            40           0            50
TEMP (24H TREND)      70 (-7)      94 (+4)      74           93
RH % (24H TREND)      100 (+5)     46 (-10)     93           49
20FTWND-VAL/AM(MPH)                E 11                      E 14
20FTWND-RDG/PM(MPH)   E  9         E 10         NE 12        E 13
MIXING HGT(FT-AGL/MSL)             6481                      5985
TRANSPORT WND (MPH)                E 14                      E 22
VENT RATE (KT-FT)                  84253                     125685
DISPERSION                         5                         5
DSI                   5            6            6            6
LAL                   3            2            2            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ019-180845-
Eastern Interior-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        PCldy        PCldy        PCldy
PRECIP TYPE           tstms        tstms        tstms        tstms
CHANCE PRECIP (%)     30           30           50           40
TEMP (24H TREND)      68 (-7)      87 (+3)      70           88
RH % (24H TREND)      100 (+2)     58 (-11)     99           58
20FTWND-VAL/AM(MPH)                E 12                      E 14
20FTWND-RDG/PM(MPH)   E  9         E 13         NE 11        E 14
MIXING HGT(FT-AGL/MSL)             5573                      4938
TRANSPORT WND (MPH)                E 18                      E 21
VENT RATE (KT-FT)                  95456                     91333
DISPERSION                         5                         5
DSI                   5            6            6            6
LAL                   3            1            1            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ022-180845-
Luquillo Mountain Range-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        PCldy        PCldy        PCldy
PRECIP TYPE           tstms        tstms        tstms        showers
CHANCE PRECIP (%)     40           30           60           50
TEMP (24H TREND)      68 (-6)      85 (+5)      68           83
RH % (24H TREND)      100 (+1)     60 (-13)     96           64
20FTWND-VAL/AM(MPH)                E 13                      E 14
20FTWND-RDG/PM(MPH)   E 10         E 12         NE 12        E 13
MIXING HGT(FT-AGL/MSL)             4527                      3696
TRANSPORT WND (MPH)                E 17                      E 20
VENT RATE (KT-FT)                  74460                     63288
DISPERSION                         5                         5
DSI                   5            6            6            6
LAL                   3            1            1            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ023-180845-
Central Mountain Range-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        MClear       MClear       PCldy
PRECIP TYPE           showers      tstms        showers      tstms
CHANCE PRECIP (%)     0            40           40           50
TEMP (24H TREND)      65 (-6)      87 (+5)      66           88
RH % (24H TREND)      100 (0)      54 (-9)      100          55
20FTWND-VAL/AM(MPH)                E 12                      NE 14
20FTWND-RDG/PM(MPH)   E  8         NE 13        NE 11        E 13
MIXING HGT(FT-AGL/MSL)             5961                      5496
TRANSPORT WND (MPH)                E 15                      E 20
VENT RATE (KT-FT)                  84435                     103949
DISPERSION                         5                         5
DSI                   3            5            5            6
LAL                   3            2            2            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ024-180845-
Cayey Mountain Range-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        PCldy        PCldy        PCldy
PRECIP TYPE           tstms        showers      tstms        tstms
CHANCE PRECIP (%)     30           20           50           40
TEMP (24H TREND)      67 (-6)      84 (+3)      70           84
RH % (24H TREND)      100 (0)      57 (-13)     96           61
20FTWND-VAL/AM(MPH)                E 13                      E 14
20FTWND-RDG/PM(MPH)   E 10         E 13         NE 11        E 14
MIXING HGT(FT-AGL/MSL)             4952                      4173
TRANSPORT WND (MPH)                E 20                      E 20
VENT RATE (KT-FT)                  88506                     70941
DISPERSION                         5                         5
DSI                   4            6            6            6
LAL                   3            1            1            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ025-180845-
Vieques-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      tstms        tstms
CHANCE PRECIP (%)     30           20           60           50
TEMP (24H TREND)      76 (-4)      89 (+4)      79           86
RH % (24H TREND)      100 (+8)     59 (-14)     92           69
20FTWND-VAL/AM(MPH)                E 17                      E 19
20FTWND-RDG/PM(MPH)   E 16         E 16         NE 19        E 16
MIXING HGT(FT-AGL/MSL)             3835                      3323
TRANSPORT WND (MPH)                E 23                      E 29
VENT RATE (KT-FT)                  68628                     83075
DISPERSION                         5                         5
DSI                   6            6            6            6
LAL                   2            1            1            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ026-180845-
Culebra-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        MClear       PCldy        PCldy
PRECIP TYPE           showers      showers      tstms        showers
CHANCE PRECIP (%)     20           20           50           50
TEMP (24H TREND)      76 (-5)      90 (+5)      80           87
RH % (24H TREND)      100 (+12)    62 (-13)     94           68
20FTWND-VAL/AM(MPH)                E 17                      E 19
20FTWND-RDG/PM(MPH)   E 17         E 15         NE 19        E 16
MIXING HGT(FT-AGL/MSL)             3615                      3222
TRANSPORT WND (MPH)                E 23                      E 29
VENT RATE (KT-FT)                  67600                     80550
DISPERSION                         5                         5
DSI                   6            6            6            6
LAL                   2            1            1            1
HAINES INDEX          3            3            3            3

Remarks...None.


$$

PRZ027-180845-
Southwest Coastal Plains and Mona Island-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        MClear       MClear       PCldy
PRECIP TYPE           showers      showers      showers      tstms
CHANCE PRECIP (%)     20           30           30           30
TEMP (24H TREND)      70 (-7)      93 (+5)      74           92
RH % (24H TREND)      100 (+6)     45 (-13)     92           49
20FTWND-VAL/AM(MPH)                E 15                      E 16
20FTWND-RDG/PM(MPH)   E 11 G20     E 15         NE 12        SE 17
MIXING HGT(FT-AGL/MSL)             6632                      6137
TRANSPORT WND (MPH)                E 15                      E 24
VENT RATE (KT-FT)                  96560                     135815
DISPERSION                         5                         5
DSI                   6            6            6            6
LAL                   2            1            1            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

VIZ001-180845-
Saint Thomas and Saint John-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      tstms        showers
CHANCE PRECIP (%)     20           20           50           50
TEMP (24H TREND)      71 (-9)      92 (+5)      77           90
RH % (24H TREND)      100 (+9)     56 (-13)     92           61
20FTWND-VAL/AM(MPH)                E 18                      E 19
20FTWND-RDG/PM(MPH)   E 17         E 17         NE 19        E 15
MIXING HGT(FT-AGL/MSL)             3838                      3228
TRANSPORT WND (MPH)                E 24                      E 28
VENT RATE (KT-FT)                  73820                     80700
DISPERSION                         5                         5
DSI                   6            6            6            6
LAL                   2            1            1            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$

VIZ002-180845-
St Croix-
246 PM AST Thu Aug 17 2017

                      Tonight      Fri          Fri Night    Sat

CLOUD COVER           PCldy        PCldy        PCldy        PCldy
PRECIP TYPE           showers      showers      tstms        tstms
CHANCE PRECIP (%)     20           20           50           50
TEMP (24H TREND)      73 (-5)      89 (0)       76           89
RH % (24H TREND)      100 (+5)     59 (-5)      99           63
20FTWND-VAL/AM(MPH)                E 19                      E 20
20FTWND-RDG/PM(MPH)   E 17         E 17         NE 20        E 14
MIXING HGT(FT-AGL/MSL)             3762                      3299
TRANSPORT WND (MPH)                E 25                      E 29
VENT RATE (KT-FT)                  82764                     85774
DISPERSION                         5                         5
DSI                   6            6            6            6
LAL                   2            1            1            2
HAINES INDEX          3            3            3            3

Remarks...None.


$$


.FORECAST FOR DAYS 3 THROUGH 7...

.SUNDAY...PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE LOWER 70S. HIGHS IN THE UPPER 80S.
EAST WINDS AROUND 10 MPH.
.MONDAY...PARTLY CLOUDY. SCATTERED SHOWERS. LOWS IN THE MID 70S.
HIGHS IN THE UPPER 80S. EAST WINDS AROUND 10 MPH.
.TUESDAY...PARTLY CLOUDY. SCATTERED SHOWERS. LOWS IN THE MID 70S.
HIGHS IN THE UPPER 80S. NORTH WINDS AROUND 10 MPH.
.WEDNESDAY...PARTLY CLOUDY. SCATTERED SHOWERS. LOWS IN THE MID
70S. HIGHS IN THE UPPER 80S. NORTH WINDS AROUND 5 MPH.
.THURSDAY...PARTLY CLOUDY. LOWS IN THE MID 70S. HIGHS IN THE
UPPER 80S. NORTH WINDS AROUND 5 MPH.

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.